Stage 4 · Properties of geometrical figures · Classify triangles according to their side and angle properties · Topic: Geometry: shapes & angles · Year 7, 8
Classify and describe types of triangles based on their properties, including acute-angled, right-angled, obtuse-angled, equilateral, isosceles and scalene triangles
Dot point ID k-10-2022-stage-4-properties-of-geometrical-figures/pro-cla-stg4-02 · NESA code MA_K_10_CP_PRO_CLA_STG4_02 · See it on the NSW Curriculum website ↗
↩SupportBuild the prerequisite skills first · 3 resources★EnrichExtension & rich tasks · 2 resources
Outcomes for this focus area (MA4-GEO-C-01)
MA4-GEO-C-01 identifies and applies the properties of triangles and quadrilaterals to solve problemsCore resources for this dot point
On-level resources, grouped by type. Need the building blocks? Use Support. Ready for more? Use Enrich.
Interactive tool
- Interactive toolStarterGeoboard (Math Learning Center)Use it for: Make triangles and parallelograms to compare areas.
- Interactive toolStarterMathsisfun: TrianglesUse it for: Triangle types with interactive diagrams.
Worksheet
- Corbettmaths practice questions: Triangles: types ofUse it for: Free printable graded practice questions (with answers) on triangles: types of for drill or a quick check.
- WorksheetDrillKuta free worksheet: Classifying trianglesUse it for: Printable skills-practice sheet with answer key on classifying triangles; good for drill or homework.
- WorksheetDrillKuta free worksheet: Classifying triangles and quadrilateralsUse it for: Printable skills-practice sheet with answer key on classifying triangles and quadrilaterals; good for drill or homework.
Video
- VideoStarterCorbettmaths video: Triangles: types ofUse it for: Short worked-example video on triangles: types of to model the method before practice or for flipped revision.
Focus area resources
Checked resources for Properties of geometrical figures as a whole (not mapped to a single dot point).